I feel that most of the women in SC200 can attest to the debilitating pain a menstrual brings. Being that I will be suffering for the next 40 years or so, I think it is incredibly problematic that young girls are subject to getting their periods earlier due to a diet they cannot help (if my hypotheses is correct). Since I feel so strongly about modified crops causing problems I then had to be skeptical.
A menstrual cycle, according to WebMD is once a month the female uterus grows a thickened lining that holds a fertilized egg. If there isn’t a fertilized egg available the uterus will shed the lining resulting in bleeding from anywhere in between 3-7 days.
On average, in the early 19th century puberty started anywhere between 15-17 years old. Now the average age of the first period is anywhere between 8-12.
So far most researchers agree the age of the onset of puberty is starting earlier; but they haven’t seem to find one solid reason.
Since there’s no ethical way to experiment on human subjects, they did a similar accidental test on cattle. What occurred was cattle were accidentally fed grains that had a chemical similar to estrogen (a female sex hormone) called PBB. Daughters of the pregnant women eating the PBB laced meat began menstruating earlier than most of their peers.
In most of the research done it appeared to be multiple anecdotes which individually could of been caused by multiple third variables. Another problem arising is the effect of the chemical compound BPA which mimics estrogen as well. They act like steroids in the body which can alter the start of puberty. The other side to this argument however is BPA has been around since 1891. And now only 7 percent of Americans don’t have traces of BPA in them. Also BPA’s are currently used in everyday plastics and other products.
I didn’t find sufficient evidence to reject my hypotheses of modified crops causing menstrual cycles to appear early. Right now the answer isn’t known yet. Feel free to cut my blog up. I’m interested in your feedback. Thanks!